Monthly Project Review December 2015

Among electric transmission happenings in December 2015, ATCO Electric energized its C$1.8bn Eastern Alberta Transmission Line project last month.

The 500-kV HVDC line, which is 301 miles in length, originates at the Heathfield converter station in the Redwater-Gibbons area northeast of Edmonton and terminates at the Newell converter station in the Brooks area south of Calgary. The project will result in increased reliability and reduce congestion in the area.

Also last December, the Lower Colorado River Authority received approval by the Public Utility Commission of Texas for its proposed Blumenthal to Kendall to Mountain Top 138-kV Transmission Line Project. The new 17-mile line will improve electric reliability in Kendall and Blanco counties, and is expected to be completed by 2018. The project has an estimated cost of $40.1m.

Four new projects where announced last month. For instance, Sharyland Utilities announced plans to construct a new 16.8-mile, 138-kV transmission line to accommodate new load growth in Howard and Martin counties, Texas. The Sale Ranch to Natural Dam project has an initial cost estimate of $17.4m, and an estimated completion date of summer 2017.

Duke Energy (NYSE:DUK) submitted details for the new Raeford Project in Cumberland County, N.C. The 3.5-mile, 230-kV transmission line will connect the Raeford and Woodruff Street substations in order to ensure reliability in the region. Duke Energy expects to complete the project by mid-2018, at a cost of $20m.

The Western Area Power Administration is planning the new Colusa–Sutter transmission line in central California. The 44-mile, 500-kV transmission line will create a new pathway for renewable energy flow by interconnecting the California-Oregon Transmission Project system and the Central Valley Project system.

Finally, NextEra Energy’s (NYSE:NEE) NextEra Energy Resources announced a 19-mile, 230-kV interconnection to coincide with its proposed Brady Wind project. The new line will run from the Brady Wind switchyard and tap into the existing Belfield–Rhame 230-kV line. The project is estimated to cost $12m, and has an estimated completion date of late 2016.